1P Cirriform SW - Dyneema/SilNylon

"It has the best performance to weight ratio of the bunch."~Backpacker Magazine: Jurrie, Amy. "Room for One" Backpacker Magazine Sept 2015: 55-57. Print

When you’ve just finished a big day and you’re aiming for another one tomorrow, our no-fuss, single-wall Cirriform lets you focus on getting things done. Just pitch the fly and let the integrated floor and netting fall into place. The Cirriform is a great for squeezing into tight spots, while its deep tub-floor retains a spacious interior. The unique dual-pointed front beak provides extra coverage for gear.

The Cirriform SW features our ‘OSAS’ system - seal off the mesh on each side by simply pulling on a cord. Great for blocking a cold breeze or to adjust your pitch from your sleeping bag (video)

One-piece design keeps things simple.

Compact footprint slips into tight spots.

Zippered vestibule rolls completely out of the way.

Interior stash pocket and hang loop for your odds and ends.

Lineloc tensioners at tie-outs for easy pitch adjustment (removable).

Taped seams on Dyneema fly never need sealing.

UHMWPE Core guyline with reflective tracer included.

We build this tent using ultralight .8 oz Dyneema for the rain fly and Silnylon for the floor to maximize weight savings and durability for the dollar (0.51 oz DCF is available for the fly by request). See more about material options on our Materials Page. Before using, seams at corners of the floor should be sealed as per these instructions. Or use our sealing service.

Lead time

YAMA is moving to Montana!

I'm really excited to be relocating YAMA to the mountains of Montana! Unfortunately, this presents several unknowns and I'm not able to guarantee lead times right now. I'll also be transitioning to a model where I stop accepting backorders and only sell in-stock items. If the item you're interested in is marked as "sold out," please check back here later for an overall production schedule which I'll make available in the future. I understand that this may be frustrating, and I appreciate your patience during the transition. I think it will provide a better experience in the long term.

For orders placed after 5/7 (excluding Scratch & Dent items), expect your order to ship in about 11 - 12 weeks (current best estimate). Orders for some accessories may ship earlier, but no promises. Scratch & Dent items are currently shipping within one business day.

For earlier orders, please see the info below for a rough estimate of your ship date.

The following order #'s are expected to be ready July 10 - 15*: 1049, 1052, 1055, 1056, 1059, 1062, 1073, 1087, 1091, 1095.*some of these orders may still be finished early and ship in May.

The following order #'s are expected to be ready July 16 - 22: 1081, 1090, 1096, 1098, 1102, 1110, 1117, 1124

The following order #'s are expected to be ready July 23 - 26: 1131, 1137, 1149, 1151, 1145

The Shelter

"It has the best performance to weight ratio of the bunch."~Backpacker Magazine: Jurrie, Amy. "Room for One" Backpacker Magazine Sept 2015: 55-57. Print

When you’ve just finished a big day and you’re aiming for another one tomorrow, our no-fuss, single-wall Cirriform lets you focus on getting things done. Just pitch the fly and let the integrated floor and netting fall into place. The Cirriform is a great for squeezing into tight spots, while its deep tub-floor retains a spacious interior. The unique dual-pointed front beak provides extra coverage for gear.

The Cirriform SW features our ‘OSAS’ system - seal off the mesh on each side by simply pulling on a cord. Great for blocking a cold breeze or to adjust your pitch from your sleeping bag (video)

One-piece design keeps things simple.

Compact footprint slips into tight spots.

Zippered vestibule rolls completely out of the way.

Interior stash pocket and hang loop for your odds and ends.

Lineloc tensioners at tie-outs for easy pitch adjustment (removable).

Taped seams on Dyneema fly never need sealing.

UHMWPE Core guyline with reflective tracer included.

We build this tent using ultralight .8 oz Dyneema for the rain fly and Silnylon for the floor to maximize weight savings and durability for the dollar (0.51 oz DCF is available for the fly by request). See more about material options on our Materials Page. Before using, seams at corners of the floor should be sealed as per these instructions. Or use our sealing service.

Lead time

YAMA is moving to Montana!

I'm really excited to be relocating YAMA to the mountains of Montana! Unfortunately, this presents several unknowns and I'm not able to guarantee lead times right now. I'll also be transitioning to a model where I stop accepting backorders and only sell in-stock items. If the item you're interested in is marked as "sold out," please check back here later for an overall production schedule which I'll make available in the future. I understand that this may be frustrating, and I appreciate your patience during the transition. I think it will provide a better experience in the long term.

For orders placed after 5/7 (excluding Scratch & Dent items), expect your order to ship in about 11 - 12 weeks (current best estimate). Orders for some accessories may ship earlier, but no promises. Scratch & Dent items are currently shipping within one business day.

For earlier orders, please see the info below for a rough estimate of your ship date.

The following order #'s are expected to be ready July 10 - 15*: 1049, 1052, 1055, 1056, 1059, 1062, 1073, 1087, 1091, 1095.*some of these orders may still be finished early and ship in May.

The following order #'s are expected to be ready July 16 - 22: 1081, 1090, 1096, 1098, 1102, 1110, 1117, 1124

The following order #'s are expected to be ready July 23 - 26: 1131, 1137, 1149, 1151, 1145

Jim L.

I recently purchased the Yama 1P Cirriform SW and just completed two backpack trips totaling 2 weeks in the high Sierra. I can state with certainty that this was a very good purchase. The tent is light, very easy to set-up, very roomy, and extremely well designed. I am very impressed with the care taken in manufacture and I think the thing I am most excited about is the fact that it was built by outdoor enthusiasts here in the US. On these two trips I spent a lot of time examining the tent and, from what I can tell, it is truly a work of art.
Good job YAMA.

Allen

I'm a PCT section hiker in California. I've used the tent 20 plus times and have zero complaints. The workmanship, design, and quality of materials are all excellent. The initial setups were a little difficult, but after a few tries I have it down to a science. I had a question on one of the tent's features, and it was answered immediately by Yama Gear.

Allison B.

I love this tent, it's well crafted and the material is smooth and silky to the touch. I am looking forward to using it as my home on my upcoming thru hike

Rodrigo G.

Extrimly bright during full moon,,I had to sleep with sunglasses SHR CA.
Good job,Yama.

Edmund F.

Just wanted to say I am a happy customer. The tent arrived in great shape. More then what I excepted. The weight of the tent is very light. I couldn’t even believe it when I first picked it up. I thought there might be something missing. All parts of the order process were easy. I did send a couple of emails about questions and they were replied back very fast. I trust this tent is going to be a great addition to my adventures. Also wanted to add this tent really fits into my minimalist style of camping and hiking.

Jeff H.

I have owned a lot of tents in the past but nothing as light and durable as this Cirriform. Truly an amazing tent that I will take on all my ultralight adventures

Todd Raish

[Cirri]form Follows Function
I own a YAMA Mountain Cirriform SW tent made from cuben fiber (.8CF panels / 1CF floor) that weighs one pound one ounce. I bought this shelter because it was the most durable and lightest fully enclosed shelter that meets my needs.
HISTORY
A shelter system should be designed to provide protection from weather and bugs, but at the same time, be durable, fast to set up and break down, and lightweight enough for one person to carry. The Cirriform SW tent meets these design parameters.
I learned about shelter systems from hiking with Andrew Skurka and Alan Dixon. These two outdoorsmen are very experienced and are very helpful with sharing their knowledge and skills about efficient hiking and backpacking.
Based on what I learned from Andrew and Alan, I knew I needed to reduce the weight and volume of my shelter, not to mention the weight of my other gear.
Over the last 15 years, I tried out many shelters while hiking the Rocky Mountains, Tetons, Continental Divide Trail, Wind River Range, Appalachian Trail, and coastal camping in British Columbia, in all seasons, in all kinds of weather.
• Marmot AJAX 3 tent (6 pounds)
• Big Agnes Scout UL (2 pounds)
• Integral Designs Unishelter Exp Bivy in eVent, 88x34 (2 pounds)
• NEMO VEDA 1P (2 pounds 2 ounces)
• Granite Gear White Lightnin’, 8FTx10FT tarp + MLD bug nest + Tyvek ground sheet (3 pounds 2 ounces)
• RAB silnylon tarp, 8FTx10FT + Mountain Hardwear DryQ bivy (2 pounds 10 ounces)
• BearPaw Designs Lair, 0.7 cuben fiber + MLD bug nest +Tyvek (1 pound 5 ounces)
• Mountain Laurel Designs Spinnaker Duo Tarp, 7.5FT x 9FT + MLD super light bivy + polycro ground sheet (1 pound 3 ounces)
The shelters are listed above in the order that I used them. You can see my progression from heavy weight conventional tents to lighter weight component systems. All of these shelters are well-made and provided good protection; however, none of them met my expectations on trail. In other words, each shelter ultimately fell short for my needs. I kept looking. Then I found YAMA Mountain.
FORM FOLLOWS FUNCTION (Cirriform follows function)
I like the Cirriform SW tent because it is designed for functionality. It is a complete one piece shelter system that is durable, low weight, and low volume.
Instead of packing 3 pieces of gear (tarp+bivy+ground sheet), I pack one piece. Instead of setting up 3 pieces, I set up one. Instead of breaking down 3 pieces, I break down one. The volume of the Cirriform SW is less than the volume of the 3 pieces. The weight of the Cirriform SW is less than the weight of the three pieces.
Cuben fiber, though more expensive than silnylon, is a better choice for shelter fabric because it does not absorb water and does not stretch like silnylon. Silnylon gets wet and stays wet – you can’t wipe it dry or shake it out after a night of hard rain.
Cuben fiber weighs far less than silnylon. And it takes up less space inside your pack.
In addition, I like the Cirriform SW tent because it provides maximum ventilation while providing maximum protection from bad weather. Staying warm requires staying dry and the Cirriform SW maintains excellent air circulation.
Because condensation is well-managed inside the Cirriform SW, I stay warmer. This means I can pack a lighter weight sleeping bag. I used to haul a Marmot Sawtooth that weighed 62 ounces. Now I carry a Marmot Plasma 30 that weighs 23 ounces.
The Cirriform SW reduced the number of pieces of gear that I carry and it reduced the overall weight of my pack load. This means I have more energy at the end of my hiking day.
Lastly, I am 6ft 5 and weigh 220 pounds. Compared to most hikers, I use a bigger sleeping bag and a bigger sleeping pad. Nevertheless, I have plenty of room inside the Cirriform SW tent for an 80 inch sleeping bag and a 77x26.5x3 inflatable mattress.
I appreciate the functional design and the high quality fabrics, stitching, and overall assembly of the YAMA Mountain Cirriform SW tent. Thanks YAMA Mountain

Anon.

I have been trying to assemble the "perfect shelter system" for many years now, but it has always seemed to elude me. When I started to convert to ultralight backpacking in 2002 I bought a Dancing Light Gear Tacoma tarp. I liked it well enough and got many years of good service from it but it did not have bug protection so I used a A-16 Bug Bivy with it -- ok solution, but not ideal. Moving on, I got a Gossamer Gear One shelter. Loved its light weight, but the set-up was fussy for me, and so I moved on to the Gossamer Gear Spinntwinn, with a Yama Mountain Gear Bug Shelter 1.25 inner. This combination was close, but the bug shelter really cuts down on the headroom inside the shelter, and the Spinntwinn lacks beaks. So, I decided to try a YMG Cirriform with a bivy. Well, I found out I don't like bivies. However, the Cirriform is an awesome tarp, so I decided to make it the starting point for my PSS (perfect shelter system). Based on my preferences, my PSS should have the following attributes:
1) Light weight
2) Easy set-up
3) A-Frame (because I prefer max headroom above my face)
4) Bug protection when needed
5) Removable ground sheet because I cowboy camp whenever possible
So, I sent my Cirriform back to Gen at YMG and asked him to convert it to a single wall tent using all no-seeum. Gen was extremely accommodating and did the modifications for me in one week! I had a custom cuben bathtub groundsheet made that clips in to the inside (on top of the mesh) of the tent. The groundsheet can be easily removed and used for cowboy camping.
The entire set-up including tent, removable groundsheet, 8 Ti Stakes and stuff sack weighs 22 ozs. For me...Perfect.

Gerry B.

This summer I purchased a 0.8 oz cuben-wall / 1.1 oz silnylon-floor Cirriform SW-1 that weighs only 19.4 oz. I am extremely pleased with it. The workmanship, ventilation, and roominess are all excellent...I could not be more pleased. Its first real test was on a six day PCT hike in early September in the Washington Cascades where it rained all six days, snowed on two of those days, with temperatures ranging from a high of 53 deg. F. to a low of 29 deg. F., perfect conditions for condensation. I am happy to say that condensation was minimal, nearly non-existent, much better than I expected. Despite periods of very hard rainfall, there was no splatter into the tent. The vestibule, though modest in size, was adequate to keep my shoes and raingear protected. The interior space for one person is more than adequate for one person and gear. I would say it is the roomiest one person tent I have ever owned while maintaining a small footprint. I was able to find fairly well protected sites, allowing me to avoid winds higher than 30 mph or so. Nevertheless, I am absolutely convinced this tent is able to withstand serious storm conditions due to its profile, quality of materials and workmanship. One of the reasons I purchased this tent was because of it's excellent reputation from thru-hikers. I prefer the durability of a silnylon floor, especially when I was able to maintain a sub-20 oz shelter. I wanted something well-made, "bomb-proof", yet very light weight. Gen achieved all three things with this tent.

Nora

I used the Cirriform SW while hiking the Long Trail, and I couldn’t have been happier! It is incredibly spacious. Even with myself and all my gear inside, I still have a ton of room to spare. It only takes a minute or two for me to set it up, and it has kept me dry and happy through nights of relentless rain, thanks to the adjustable side panels. My favorite part is that it packs down to an unbelievably small size - I’ve never had so much room in my backpack! I really can’t rave enough about my Cirriform; by and far, it blows away all the other single-wall tents I have ever used. Thank you for providing such an efficient, effective, lightweight home!